PLEASE HELP! Suppose you live 4.4 miles from a hill. From your home you see a plane directly above the hill. Your angle of elevation to the plane is 30°. What is the plane’s altitude?
–28.2 miles
3.8 miles
2.2 miles
2.5 miles

Question

PLEASE HELP! Suppose you live 4.4 miles from a hill. From your home you see a plane directly above the hill. Your angle of elevation to the plane is 30°. What is the plane’s altitude?  
–28.2 miles
3.8 miles
2.2 miles
2.5 miles

anonymous · Answer

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anonymous · Answer

tanx= opposite/adjacent

Thus, ...
tan(30)=opposite/4.4
opposite (height) = 4.4mitan(30)
height=2.540 mi = 2.5 mi